Strong blasts hit the outskirts of the Syrian capital early on Sunday, state TV reports, saying that Israeli rockets have targeted a military research center. Massive explosions have been heard near Mount Qasioun in Damascus. The area hosts the Jamraya military research center, which came under Israeli attack earlier in January and marked the first incursion by Israel into Syrian airspace in six years.

Israel has confirmed its warplanes have carried out an air strike into Syria. Unnamed Israeli officials said the target was a shipment of missiles believed to have been bound for Hezbollah militants in neighbouring Lebanon.

Previous reports that planes had struck a Syrian chemical weapons factory have been denied.

Strong blasts hit the outskirts of Syria's capital early on Sunday, with reports saying that they were results of Israeli airstrikes on a military research center and Damascus Airport. Israel is thought to have carried out a similar attack days ago.